Re: [Condor-users] concurrency limits

[Rich Pieri <ratinox@xxxxxxx>]

On Jun 21, 2011, at 9:10 AM, Matthew Farrellee wrote:
> You can have each user put a limit in their submit file, or you should 
> be able to use this config...


It isn't that simple.  Again with the hypotheticals, let's say that you have a Condor pool and a software package with 50 floating licenses -- that is, the pool can have up to 50 instances of that package running concurrently.  Alice wants to start a large, long-running (days or weeks) job and she is authorized to use all 50 licenses.  She submits her job with a concurrency limit of 45 licenses (she is a considerate user) and her processes start running.

You come along a day or two later and want to reduce Alice's concurrency limit to 30 licenses.  How do you propose to have Condor make 15 of Alice's actively running processes release their licenses?

-- 
Rich Pieri <ratinox@xxxxxxx>
MIT Laboratory for Nuclear Science
24-030a / (617) 452-4081